Newbie here that can't seem to login to Centos VSFTPD over the Internet, I'm not sure what to type into the browser, i can access FTP locally, i have a Netcomm NB6W ADSL2 Modem Router with ports 20 - 21 and 33201 - 33210 forwarding to my Static server 192.168.1.3

these websites all assume that i have a domain name as in ftp://ftp.microsoft.com

but i have a local network
with computer 1 with ip 192.168.1.2 which can access ftp server locally using ftp://fileserver/
ftp server which is 192.168.1.3
and a adsl2 netcomm router with ip address 220.250.xxx.xxx with port 20,21 forwarded to 192.168.1.3
i'm still not sure how to go about connecting from an external network address
or even if this is setup right, is there a way from 192.168.1.2 that i could test this ftp server or will i have to access another computer outside the network to try and if so what would the syntax be
ftp://220.250.xxx.xxx/192.168.1.3
ftp://220.250.xxx.xxx/fileserver
ftp://192.168.1.3/220.250.xxx.xxx

If the relevant ports are forwarded to the LAN address, and firewall/SELinux are not interfering, you should just be able to use the public IP address: ftp://220.250.xxx.xxx/ in your example format. Are you sure the ISP is not blocking the ports? They often do.

You should be able to test locally with another system on the LAN and the local IP address to be sure the basic service is working.

i updated the firmware on the router and checked port 21 with online port scanner i also opened a couple more ports to check on the reliability of the port scanner and it worked every time, and it is open but still cant manage to logon with router ip address, but i still can with local ip address, don't know what else i can do....... any one have any clues?